No more Fattener plugin at 2025?

I’m currently using Rhino 8, but the Flattener plugin won’t install. Does that mean it’s no longer compatible?

https://discourse.mcneel.com/t/skeleton-fattener-mesh-cage-morph/74766/11

It’s kind of obsolete and replaced with Multipipe. But it works for me.
Try to drag and drop the file in canvas.